Plastic formed inflation mouth structure

Abstract

A plastic formed inflation mouth structure comprises a plastic formed body which is integrally formed with an inflation mouth by plastic injection molding. The inflation mouth includes an inflation apparatus passage and a restoration unit that are integrally formed. The inflation apparatus passage unit is formed with a notch for passage of an inflation apparatus to perform the inflation or deflation. The restoration unit applies an elastic restoration force onto the notch to make the notch assuredly enclose the inflation apparatus during the inflation and ensure a high airtightness when inflation is stopped.

1 . A plastic formed injection mouth structure comprising:
 a plastic formed body integrally formed with an inflation mouth, the inflation mouth including an inflation apparatus passage unit and a restoration unit that are integrally formed by injection molding; wherein:   the plastic formed body includes an inner surface and an outer surface;   the inflation apparatus passage unit protrudes from the inner surface of the plastic formed body, the inflation apparatus passage unit is a hollow structure and includes an inflation apparatus insertion space which is open toward the outer surface of the plastic formed body, the inflation apparatus passage unit is formed with a notch, an extending direction of the notch is defined as a notch direction; and   the restoration unit and the inflation apparatus passage unit of the inflation mouth are integrally formed by plastic injection molding, the restoration unit produces an elastic restoration force in an elastic restoration force direction which is vertical to the notch direction, the restoration unit applies the elastic restoration force to the notch from two opposite sides of the notch.   
     
     
         2 . The plastic formed injection mouth structure as claimed in  claim 1 , wherein the restoration unit of the inflation mouth is disposed at two opposite sides of the notch. 
     
     
         3 . The plastic formed injection mouth structure as claimed in  claim 2 , wherein the restoration unit of the inflation mouth fully encloses an outer periphery of the inflation apparatus unit. 
     
     
         4 . The plastic formed injection mouth structure as claimed in  claim 2 , wherein the restoration unit partially encloses an outer periphery of the inflation apparatus passage unit with the notch exposed. 
     
     
         5 . The plastic formed injection mouth structure as claimed in  claim 2 , wherein the restoration unit of the inflation mouth is disposed at two opposite sides of a top end of the inflation apparatus passage unit. 
     
     
         6 . The plastic formed injection mouth structure as claimed in  claim 2 , wherein the restoration unit of the inflation mouth is disposed at two opposite sides of an outer periphery of the inflation apparatus passage unit. 
     
     
         7 . The plastic formed injection mouth structure as claimed in  claim 2 , wherein the restoration unit of the inflation mouth is slantways disposed at two opposite sides of a top end of the inflation apparatus passage unit. 
     
     
         8 . The plastic formed injection mouth structure as claimed in  claim 2 , wherein the restoration unit of the inflation mouth is inserted in two opposite sides of the inflation apparatus passage unit. 
     
     
         9 . The plastic formed injection mouth structure as claimed in  claim 1 , wherein an elastic restoration ability of the restoration unit of the inflation mouth is greater than that of the inflation apparatus passage unit. 
     
     
         10 . The plastic formed injection mouth structure as claimed in  claim 1 , wherein the restoration unit and the inflation apparatus passage unit of the inflation mouth are made of different characteristics of plastic materials. 
     
     
         11 . The plastic formed injection mouth structure as claimed in  claim 1 , wherein the inflation apparatus passage unit is formed with the notch in an end thereof protruding toward the inner surface of the plastic formed body.